Dungannon and remained in post until retirement. (2004–2007) Leonard F. Quigg was the first headmaster in the school's history to have been promoted 'from within the ranks'. Quigg served as an assistant master, head of English, Senior Master, as both junior and senior Vice-Principal before his appointment as headmaster in January 2004. Quigg retired in 2007. (2007–2015) David Carruthers is CAI's current headmaster. He was previously the head of mathematics at Royal Belfast Academical Institution. Notable alumni John Bodkin Adams, suspected serial killer Richard Archibald, Irish Olympic rower 2004 and 2008. World silver medallist 2005, bronze medallist 2006 Sir Dawson Bates, 1st Baronet, politician Air Marshal Sir George Beamish Victor Beamish RAF ace fighter pilot in WWII David Burnside, Ulster Unionist Party MLA and former MP Alan Campbell, 2004, 2008 and 2012 (bronze) Olympic rower, 2006 world champion, 2007 Henley diamond scull winner Mark Carruthers, TV presenter/personality Peter Chambers, 2011 world champion and 2012 Olympic Silver rower Richard Chambers, 2007 World Champion and 2008 and 2012 (silver) Olympic rower Major General Ed Davis, Commandant General Royal Marines, Governor of Gibraltar John Clarke Davison, Ulster Unionist Party (UUP) politician Barry Hunter, former Northern Ireland international footballer Chris Hunter, British chemist and academic David McClarty, UUP MLA for Londonderry East Brigadier Mervyn McCord, former Commanding Officer of the Ulster Defence Regiment Graeme McDowell, Ryder Cup golfer and U.S. Open winner James Nesbitt, film and TV actor Jim Shannon, Democratic Unionist Party MP for Strangford Tommy Sheppard, Scottish National party MP for Edinburgh East. Edward H. Simpson, statistician and civil servant, known for Simpson's paradox James Stewart, lawyer Andrew Trimble, rugby union player References External links Old Boys' Association 1860 establishments in Ireland 2015 disestablishments in Northern Ireland Educational institutions established in 1860 Educational institutions disestablished in 2015 Grammar schools in County Londonderry Member schools of the Headmasters' and Headmistresses' Conference Coleraine Boys' schools in Northern Ireland Grade B1 listed buildings